Which type of reaction absorbs energy in the form of heat?

An endothermic reaction is characterized by the absorption of energy in the form of heat from its surroundings. During this type of reaction, the energy taken in is typically used to break bonds in the reactants, which requires an input of energy. This results in a decrease in temperature of the surrounding environment as heat is drawn in to facilitate the reaction.

Endothermic reactions are crucial in various natural processes, such as photosynthesis, where plants absorb sunlight to convert carbon dioxide and water into glucose and oxygen. This fundamental principle distinguishes endothermic reactions from other types, which may release heat or involve different energy dynamics.